2 results
Search Results
Now showing 1 - 2 of 2
Item Increased Oil Recovery from Distillers Dried Grains with Solubles and Whole Stillage(North Dakota State University, 2020) Huda, Md. SanaulFinding a viable method to recover oil from the corn ethanol industry's co-products has considerable economic prospects for ethanol bio-refineries. This study examined the effects of enzymes and ethanol on oil recovery from dried distillers' grains with solubles (DDGS) and oil distribution in the whole stillage (WS). Protease and cellulase enzymes were tested either individually or in combination with the heavier fractions of DDGS and resulted in 18-20% more oil than the original DDGS. More than 90% of the oil was recovered from the heavier fraction of DDGS using ethanol at 30ºC with 30% solid loadings. Ethanol addition also improved oil partition in WS's liquid fraction by 17–20%. Overall, enzymes and ethanol treatments showed a positive effect on oil recovery from DDGS and WS. Ethanol bio-refineries may use these findings to recover oil as no significant changes are required in the ethanol plant's design.Item Manufacturing Low-Density Particleboards from Wheat Straw and Distiller's Dried Grains with Solubles(North Dakota State University, 2021) Regmi, SagarAgricultural byproducts like wheat straw and distillers dried grains with solubles (DDGS) have not found a good market in the wood composite industry. Utilizing DDGS for particleboard in addition to using it as feed will add economic value. This study investigated the potential of using DDGS and wheat straw at different proportions in low-density particleboard with phenol-formaldehyde binder. The effect of alkaline pretreatment of DDGS and wheat straw on the properties of board was also studied. Particleboards were tested for physical and mechanical properties, including density, water absorption, thickness swelling, flexural, internal bond, screw withdrawal, and hardness properties. Particleboards with 25% DDGS loading and 75% wheat straw met most of the mechanical properties requirement for low-density particleboards. Alkaline pretreatment did not improve the properties of manufactured particleboards. This study suggests that a higher fiber fraction DDGS and wheat straw can be used in low-density particleboards with reduced synthetic resins.